This is a tested four-day plan for a first visit to Salalah, whether during Khareef season or outside it (the main difference being that waterfalls and lagoons are only active during and just after Khareef).
Day 1: The city and Ain Razat
Start with Al Hosn Palace (viewed from outside) and Sultan Qaboos Street, then head to the public gardens and Ain Razat, a natural spring surrounded by mango and banana trees that becomes a popular family picnic spot during Khareef. Close the day at Salalah's corniche at sunset, lined with palm trees and seafront cafés.
Day 2: Wadi Darbat and the frankincense trail
This is Salalah's star attraction. Wadi Darbat, about 40 km north of the city, turns into a green lagoon ringed by cliffs during Khareef, sometimes with a waterfall cascading nearly 100 meters, and pedal boats dot the water. Take a boat out on the lagoon and watch for the flamingos that occasionally show up on its banks. On the way back, stop at a frankincense shop in Al-Haffa souq to buy fresh resin straight from its source — Dhofar is the "Land of Frankincense," a UNESCO World Heritage Site.
Day 3: Mughsail and the western coast
Head west toward Mughsail Beach (about 45 minutes), with its dramatic limestone cliffs and the Marneef Cave blowholes, which shoot spray into the air when waves crash into them. En route, stop at Wadi Dawkah, the UNESCO-listed wild frankincense grove, to see the actual tree behind the ancient world's most prized commodity.
Day 4: Taqah, Al-Haffa harbor, and Sumhuram (Khor Rori)
Drive east to the coastal town of Taqah, with its historic castle and traditional houses, then visit the ruins of Sumhuram at Khor Rori, the ancient port that exported frankincense some 2,000 years ago — also part of the Land of Frankincense UNESCO listing. Close the trip with a quick stop at Al-Baleed Archaeological Park near the city before heading to the airport.
Trip tips: book a 4x4 if you plan to visit the mountains right after rain, since some dirt tracks get tricky. Pack lightweight but rain-resistant clothing for Khareef — it's humid more than cold. Front-load outdoor activities early in the day before the thick fog that sometimes rolls over the mountaintops by midday.